package com.ds.common.org.expression.org;

import java.util.ArrayList;
import java.util.List;
import java.util.Stack;

import com.ds.common.expression.ParseException;
import com.ds.common.expression.function.Function;
import com.ds.org.Org;
import com.ds.org.OrgManager;
import com.ds.org.OrgNotFoundException;
import com.ds.server.OrgManagerFactory;

 /** 
  * 取得指定组织的直接上级和间接上级的组织（递归）
 * <p>Title: JDSORG组织机构中间件</p>
 * <p>Description: </p>
 * <p>Copyright: jds Copyright (c) 2003-2008</p>
 * <p>Company: www.justdos.net</p>
 * @author wenzhangli
 * @version 2.0
 */
public class GetAllParentPlusSelfOrg extends Function {
	public GetAllParentPlusSelfOrg() {
		numberOfParameters = 1;
	}

	public void run(Stack stack) throws ParseException
	{
		checkStack(stack); // check the stack

		stack.push(perform(stack.pop()));
	}

	protected Org[] perform(Object param1) throws ParseException {
		if (param1 == null) {
			return new Org[0];
		}
		//组织机构的标识
		if (param1 instanceof String) {
			String orgId = (String)param1;
		OrgManager accountManager = OrgManagerFactory.getOrgManager();
			try {
				Org org = accountManager.getOrgByID(orgId);
				return perform(org);
			} catch (OrgNotFoundException e) {
				return new Org[0];
			}
		}
		//组织机构对象
		if (param1 instanceof Org) {
			Org org = (Org)param1;
			List result = new ArrayList();
			//加入自己
			result.add(org);
			
			Org parent = org.getParent();
		    result.add(parent);
		    while(parent != null) {
		    	Org p = parent.getParent();
		        if (p != null) {
		            result.add(p);
		        }
		        parent = p;
		    }
			return (Org[]) result.toArray(new Org[result.size()]);
		}
		throw new ParseException("Invalid parameter type in:" + this.getClass().getName() + ", param1 is " + param1.getClass().getName());
	}
}